Gas compression apparatus and method with noise attenuation

  • US 20030161717A1
  • Filed: 02/28/2002
  • Published: 08/28/2003
  • Est. Priority Date: 02/28/2002
  • Status: Active Grant
First Claim
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1. A gas compression apparatus comprising a casing having an inlet for receiving gas;

  • an impeller disposed in the casing for receiving gas from the inlet and compressing the gas;

    a plate disposed in a wall of the casing;

    a plurality of vanes extending from the plate; and

    a plurality of cells formed in the plate to form an array of resonators to attenuate acoustic energy generated by the impeller.

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